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https://www.readbyqxmd.com/read/28214286/-partial-delegation-to-radiation-therapists-of-the-control-by-cone-beam-ct-of-prostate-positioning
#1
C Benhaïm, G Loos, J L Achard, L Berger, C Caillé, T Frédéric-Moreau, J Biau, M Lapeyre
PURPOSE: Intensity modulated radiotherapy for prostate cancer involves daily monitoring of the positioning of the prostate, possible with cone beam CT (CBCT). It allows increased accuracy compared to readjustments but induces an increase in the time dedicated to these medical checks. The aim of the study was to evaluate the possibility of delegation of this task to the radiation therapists by comparing their readjustments to the doctors. PATIENTS AND METHODS: Five consecutive patients treated with radiation for prostate cancer (76Gy) were analysed...
February 14, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28214281/patient-characterization-and-usage-trends-of-proton-beam-therapy-for-localized-prostate-cancer-in-the-united-states-a-study-of-the-national-cancer-database
#2
Arya Amini, David Raben, E David Crawford, Thomas W Flaig, Elizabeth R Kessler, Elaine T Lam, Paul Maroni, Thomas J Pugh
PURPOSE: To evaluate usage trends and identify factors associated with proton beam therapy (PBT) compared to alternative forms of external beam radiation therapy (RT) (EBRT) for localized prostate cancer. PATIENTS AND METHODS: The National Cancer Database was queried for men with localized (N0, M0) prostate cancer diagnosed between 2004 and 2013, treated with EBRT, with available data on EBRT modality (photon vs. PBT). Binary multiple logistic regression identified variables associated with EBRT modality...
February 14, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28214037/chemotherapy-should-not-yet-be-considered-in-patients-with-hormono-sensitive-metastatic-prostate-c%C3%A3-ncer
#3
EDITORIAL
B Miñana López
No abstract text is available yet for this article.
February 14, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28213961/chrysin-induces-death-of-prostate-cancer-cells-by-inducing-ros-and-er-stress
#4
Soomin Ryu, Whasun Lim, Fuller W Bazer, Gwonhwa Song
Chrysin is a natural flavone found in numerous plant extracts, honey and propolis that has multiple biological activities including anti-cancer effects. Understanding of biological mechanisms mediated in response to chrysin in cancerous cells may provide novel insight into chemotherapeutic approaches with reduced side effects in cancers. In the present study, we investigated functional roles of chrysin in progression of prostate cancer cells using DU145 and PC-3 cell lines. The results showed that chrysin induced apoptosis of cells evidenced by DNA fragmentation and increasing the population of both DU145 and PC-3 cells in the sub-G1 phase of the cell cycle...
February 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28213918/editorial-comment-to-biopsy-undergrading-in-men-with-gleason-score-6-and-fatal-prostate-cancer-in-the-european-randomized-study-of-screening-for-prostate-cancer-rotterdam
#5
Lars Egevad, Hemamali Samaratunga, Brett Delahunt
No abstract text is available yet for this article.
February 17, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28213802/high-expression-of-aspm-correlates-with-tumor-progression-and-predicts-poor-outcome-in-patients-with-prostate-cancer
#6
Jian-Jiang Xie, Yang-Jia Zhuo, Yu Zheng, Ru-Jun Mo, Ze-Zhen Liu, Bo-Wei Li, Zhi-Duan Cai, Xue-Jin Zhu, Yu-Xiang Liang, Hui-Chan He, Wei-de Zhong
PURPOSE: Abnormal spindle microtubule assembly (ASPM) gene was known to be linked with poor clinical prognosis in various tumors. However, the clinical significance of ASPM in prostate cancer (PCa) has not yet been understood. The purpose of this study was to determine the association of ASPM with tumor progression and prognosis in PCa patients. METHODS: The expression of ASPM at protein level in human PCa and non-cancerous prostate tissue was detected by immunohistochemical analysis, which was further validated by using microarray-based dataset (NCBI GEO: GSE21032 and The Cancer Genome Atlas (TCGA) dataset) at mRNA level...
February 17, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28213801/efficacy-of-a-neoadjuvant-gonadotropin-releasing-hormone-antagonist-plus-low-dose-estramustine-phosphate-in-high-risk-prostate-cancer-a-single-center-study
#7
Kazuhisa Hagiwara, Takuya Koie, Chikara Ohyama, Hayato Yamamoto, Atsushi Imai, Shingo Hatakeyama, Takahiro Yoneyama, Yasuhiro Hashimoto, Yuki Tobisawa, Tohru Yoneyama
PURPOSE: The optimal treatment for high-risk prostate cancer (Pca) remains to be established. We previously reported favorable biochemical recurrence-free survival (BRFS) for high-risk Pca patients treated with neoadjuvant therapy comprising a luteinizing hormone-releasing hormone agonist plus low-dose estramustine (LHRH + EMP) prior to radical prostatectomy (RP). In the present study, we evaluated the efficacy of neoadjuvant therapy comprising a gonadotropin-releasing hormone antagonist plus low-dose estramustine phosphate (GnRH + EMP) in patients with high-risk Pca...
February 17, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28213657/the-roles-of-uvb-and-vitamin-d-in-reducing-risk-of-cancer-incidence-and-mortality-a-review-of-the-epidemiology-clinical-trials-and-mechanisms
#8
REVIEW
Meis Moukayed, William B Grant
Global cancer incidence and mortality rates are high and increasing. Thus, it is imperative to find novel solutions to preventing cancer incidence and treating it at an affordable yet efficacious manner. The solar UVB-vitamin D-cancer hypothesis was first proposed in 1980 based on a geographical ecological study. Since then, numerous ecological and observational studies as well as studies of mechanisms have provided support for the hypothesis. However, observational studies have not provided consistent support, in part due to using a single blood draw from any season to use for serum 25-hydroxyvitamin D [25(OH)D] concentration in prospective studies with long follow-up times...
February 17, 2017: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/28213364/safety-and-antitumor-activity-of-apalutamide-arn-509-in-metastatic-castration-resistant-prostate-cancer-with-and-without-prior-abiraterone-acetate-and-prednisone
#9
Dana E Rathkopf, Emmanuel S Antonarakis, Neal D Shore, Ronald F Tutrone, Joshi J Alumkal, Charles J Ryan, Mansoor Saleh, Ralph J Hauke, Rajesh Bandekar, Edna Chow Maneval, Carla J de Boer, Margaret K Yu, Howard I Scher
PURPOSE: To evaluate the efficacy of apalutamide before or after treatment with abiraterone acetate and prednisone (AAP) in patients with progressive metastatic castration-resistant prostate cancer (mCRPC). EXPERIMENTAL DESIGN: Two cohorts were studied: AAP-naïve and post-AAP patients who had received ≥6 months of AAP. Patients had progressive mCRPC per rising prostate-specific antigen (PSA) and/or imaging, without prior chemotherapy exposure. All received apalutamide 240 mg/day...
February 17, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28213355/chd1-is-a-synthetic-essential-gene-in-pten-deficient-prostate-cancer
#10
(no author information available yet)
CHD1 is required for the growth of PTEN-deficient prostate cancer cells in vitro and in vivo.
February 17, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28213333/hmba-is-a-putative-hsp70-activator-stimulating-hexim1-expression-that-is-down-regulated-by-estrogen
#11
Rati Lama, Chunfang Gan, Nethrie Idippily, Viharika Bobba, David Danielpour, Monica Montano, Bin Su
Hexamethylene bis-acetamide inducible protein 1 (HEXIM1) is identified as a novel inhibitor of estrogen stimulated breast cell growth, and it suppresses estrogen receptor-α transcriptional activity. HEXIM1 protein level has been found to be downregulated by estrogens. Recently, HEXIM1 has been found to inhibit androgen receptor transcriptional activity as well. Researchers have used Hexamethylene bis-acetamide (HMBA) for decades to stimulate HEXIM1 expression, which also inhibit estrogen stimulated breast cancer cell gene activation and androgen stimulated prostate cancer gene activation...
February 14, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28212658/c-met-expression-and-activity-in-urogenital-cancers-novel-aspects-of-signal-transduction-and-medical-implications
#12
REVIEW
Ralf Hass, Susanne Jennek, Yuanyuan Yang, Karlheinz Friedrich
C-Met is a receptor tyrosine kinase with multiple functions throughout embryonic development, organogenesis and wound healing and is expressed in various epithelia. The ligand of c-Met is Hepatocyte Growth Factor (HGF) which is secreted among others by mesenchymal stroma/stem (MSC) cells.Physiological c-Met functions are centred around processes that underly cellular motility and invasive growth. Aberrant c-Met expression and activity is observed in numerous cancers and makes major contributions to cell malignancy...
February 17, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28212551/nrip-dcaf6-stabilizes-the-androgen-receptor-protein-by-displacing-ddb2-from-the-cul4a-ddb1-e3-ligase-complex-in-prostate-cancer
#13
Hsin-Hsiung Chen, Ping Fan, Szu-Wei Chang, Yeou-Ping Tsao, Hsiang-Po Huang, Show-Li Chen
Both nuclear receptor interaction protein (NRIP) and DNA damage binding protein 2 (DDB2) belong to the Cullin 4 (CUL4)-DDB1 binding protein family and are androgen receptor (AR)-interacting proteins. Here, we investigated the expression patterns of the NRIP, DDB2 and AR proteins in human prostate cancer tissues and found that the expression levels of NRIP and AR were higher, but the DDB2 level was lower, in prostate cancer tissues than in non-neoplastic controls, suggesting NRIP as a candidate tumor promoter and DDB2 as a tumor suppressor in prostate cancer...
February 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212547/resveratrol-induces-cell-cycle-arrest-and-apoptosis-with-docetaxel-in-prostate-cancer-cells-via-a-p53-p21waf1-cip1-and-p27kip1-pathway
#14
Santosh Kumar Singh, Saswati Banerjee, Edward P Acosta, James W Lillard, Rajesh Singh
Resveratrol (RES) is the most effective natural products used for the treatment of a variety of cancers. In this study, we tested the effect of RES in enhancing the efficacy of docetaxel (DTX) treatment in prostate cancer (PCa) cells. The C4-2B and DU-145 cell lines were treated with RES, DTX and combination followed by evaluating the apoptosis and cell cycle progression. The combined drug treatment up-regulates the pro-apoptotic genes (BAX, BID, and BAK), cleaved PARP and down regulates the anti-apoptotic genes (MCL-1, BCL-2, BCL-XL) promoting apoptosis...
February 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212537/itraconazole-exerts-its-anti-melanoma-effect-by-suppressing-hedgehog-wnt-and-pi3k-mtor-signaling-pathways
#15
Guanzhao Liang, Musang Liu, Qiong Wang, Yongnian Shen, Huan Mei, Dongmei Li, Weida Liu
Malignant melanoma is the deadliest form of all skin cancers. Itraconazole, a commonly used systemic antifungal drug, has been tested for its anti-tumor effects on basal cell carcinoma, prostate cancer, and non-small cell lung cancer. Whether itraconazole has any specific anti-tumor effect on melanoma remains unknown. However, the goal of this study is to investigate the effect of itraconazole on melanoma and to reveal some details of its underlying mechanism. In the in vivo xenograft mouse model, we find that itraconazole can inhibit melanoma growth and extend the survival of melanoma xenograft mice, compared to non-itraconazole-treated mice...
February 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212536/targeting-the-stress-oncoprotein-ledgf-p75-to-sensitize-chemoresistant-prostate-cancer-cells-to-taxanes
#16
Leslimar Ríos-Colón, Christina K Cajigas-Du Ross, Anamika Basu, Catherine Elix, Ivana Alicea-Polanco, Tino W Sanchez, Vinodh Radhakrishnan, Chien-Shing Chen, Carlos A Casiano
Prostate cancer (PCa) is associated with chronic prostate inflammation resulting in activation of stress and pro-survival pathways that contribute to disease progression and chemoresistance. The stress oncoprotein lens epithelium-derived growth factor p75 (LEDGF/p75), also known as DFS70 autoantigen, promotes cellular survival against environmental stressors, including oxidative stress, radiation, and cytotoxic drugs. Furthermore, LEDGF/p75 overexpression in PCa and other cancers has been associated with features of tumor aggressiveness, including resistance to cell death and chemotherapy...
February 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212533/upregulation-of-long-non-coding-rna-plncrna-1-promotes-proliferation-and-induces-epithelial-mesenchymal-transition-in-prostate-cancer
#17
Yang Jin, Zilian Cui, Xudong Li, Xunbo Jin, Jian Peng
OBJECTIVE: To confirm that PlncRNA-1 regulates the cell cycle in prostate cancer cells and induces epithelial-mesenchymal transition (EMT) in prostate cancer through the TGF-β1 pathway. RESULTS: PlncRNA-1 and TGF-β1 expression levels were significantly higher in prostate cancer tissues than in normal prostate tissues (P < 0.05) and were significantly positively correlated. TGF-β1, N-cadherin and Cyclin-D1 were downregulated and E-Cadherin was upregulated in LNCAP cells after silencing of PlncRNA-1, as determined by real-time PCR and Western blot...
February 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212531/msmb-gene-rs10993994-polymorphism-increases-the-risk-of-prostate-cancer
#18
Tao Peng, Lifeng Zhang, Lijie Zhu, Yuan-Yuan Mi
Genome-wide association studies (GWASs) identified microseminoprotein-β (MSMB) gene rs10993994 polymorphism was significantly associated with prostate cancer (PC) risk. However, the association between MSMB gene rs10993994 polymorphism and PC risk remains controversial. Therefore, we performed a systematic review and meta-analysis by searching in the databases of PubMed, and Embase. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated by using fixed-effect or random-effect models. A total of 11 publications containing 13 case-control studies for rs10993994 polymorphism were included in our analysis...
February 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212371/circulating-tumor-cells-in-prostate-cancer-beyond-enumeration
#19
Jie-Fu Chen, Yi-Tsung Lu, Shirley Cheng, Hsian-Rong Tseng, Robert A Figlin, Edwin M Posadas
Circulating tumor cells (CTCs) are a population of rare cancer cells that have detached from the primary tumor and/or metastatic lesions and entered the peripheral circulation. Enumeration of CTCs has demonstrated value as a prognostic biomarker, and newer studies have pointed to information beyond enumeration that is of critical importance in prostate cancer. Technologic advances that permit examination of the morphology, function, and molecular content of CTCs have made it possible to measure these factors as part of liquid biopsy...
January 2017: Clinical Advances in Hematology & Oncology: H&O
https://www.readbyqxmd.com/read/28212369/prognostic-biomarkers-in-early-stage-prostate-cancer
#20
Eric Klein
No abstract text is available yet for this article.
January 2017: Clinical Advances in Hematology & Oncology: H&O
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